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发布时间:2024-02-25 04:52:45

[单项选择]Which of the following best describes how locks are used in DB2?()
A. To maintain control of updated rows for commit processing
B. To ensure only committed changes are altered by another application
C. To allow two applications to update the same row of data simultaneously
D. To prevent multiple applications from accessing the same data simultaneously

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[单项选择]Which of the following best describes the passage as a whole
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B. An analysis of a dispute between two theorists.
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